CARLO GAVAZZI WM50 Serie Manuel D'instructions page 24

Latch function
When the latch function is enabled, the alarm remains active even if the monitored variable exits the alarm condition. The alarm
can only be reset by the digital input or UCS command.
Output activation logic
If several alarms are associated with an output, the output will only activate if all the alarms set with AND logic are active or if at
least one of the alarms set with OR logic is active.
Setting alarms
To set an alarm for...
a main line or M A TPN analog input variable
wrong voltage connection condition
single channel or load alarms
Note
: the alarm will activate if alarms were set and at least one of the
channels or loads are in alarm conditions.
variable selected for the single channels or loads
From WM50: See "Settings from WM50" on page 29, sub-menu Virt al x (x = alarm number).
Accessory modules
Enabling accessory modules
Accessory modules are automatically recognized by WM50. They only need to be manually set if configuring the system from UCS
in offline mode.
Note: by default, the M C 485 232 communication module is always enabled even if not actually connected.
Digital inputs
Digital inputs can run various functions, according to the following table:
Input Possible functions
Tariff
1
l
Interval synchronization for average value calculation (dmd)
l
Input status reading
l
Tariff
2
l
Input status reading
l
Tariff
3
l
Exported active energy meter pulse counting (kWh-)
l
Input status reading
l
C1 totalizer pulse counting (water, gas, heat)
4
l
C1 totalizer pulse counting (protection trip)
l
Imported active energy meter pulse counting (kWh+)
l
Alarm reset
l
Input status reading
l
Then...
set:
variable to be monitored = the
l
desired variable
all other parameters at will
l
set:
variable to be monitored = PHS
l
(phase sequence)
alarm type = down • set 1 = 0
l
set 2 = 0
l
set:
variable to be monitored = BCM
l
1. Select the variable for advanced
channel/load monitoring.
2. Set parameters shared by all alarms.
3. Enable and set the set point for each
single channel or load.
WM50 - Instruction manual | 26/04/2022 | CARLO GAVAZZI Controls SpA
Essential information
WM50
UCS
keypad
x x
x x
x x
- x
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